A tribe of extinct prehistoric fishes that possessed comb-like fins and distinctive tooth structures.
From Greek 'ctenis' (comb), 'di' (two), and 'pterion' (fin), referring to fish with comb-like and paired fins. The suffix '-ini' denotes a taxonomic tribe.
These ancient fish lived hundreds of millions of years ago and had super specialized comb-like fins that helped them dominate prehistoric oceans before they went extinct!
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